SYNTHESIS OF 2-PHENYL-4,5,6,7-TETRAHYDRO-1<i>H</i>-INDOLES WITH A CHIRAL SUBSTITUENT AT THE NITROGEN ATOM
DOI:
https://doi.org/10.1007/1189Keywords:
2-phenyl-4, 5, 6, 7-tetrahydro-1H-indoles, trans-amino propargylic alcohols, chiral substituent at nitrogen atom, palladium-catalyzed cyclizationAbstract
An efficient method has been developed for the enantioselective synthesis of 2-phenyl-4,5,6,7-tetra-hydro-1<i>H</i>-indoles containing chiral substituents at the nitrogen atom. It is based on opening of the epoxide fragment of 1-phenylethynyl-7-oxabicyclo[4.1.0]heptane with chiral amines and/or amino acid esters followed by intramolecular, metal catalyzed cyclization.
Authors: I. A. Andreev, I. O. Ryzhkov, A. V. Kurkin, and M. A. Yurovskaya.
English Translation in Chemistry of Heterocyclic Compounds, 2012, 48 (5), pp 715-719